M. R. Evid. 501: Privileges recognized only as provided.

Except as otherwise provided by constitution, statute, these rules, or other rules applicable in the courts of this state, no person has a privilege to:

(1) refuse to be a witness;

(2) refuse to disclose any matter;

(3) refuse to produce any object or writing; or

(4) prevent another from being a witness or disclosing any matter or producing any object or writing.